[llvm-bugs] [Bug 50899] New: ICE: clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*): Assertion `(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur in error-recovery path."' failed.

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Jun 26 14:46:25 PDT 2021 

https://bugs.llvm.org/show_bug.cgi?id=50899

            Bug ID: 50899
           Summary: ICE: clang::Sema::BuildBinOp(clang::Scope*,
                    clang::SourceLocation, clang::BinaryOperatorKind,
                    clang::Expr*, clang::Expr*): Assertion
                    `(LHSExpr->containsErrors() ||
                    RHSExpr->containsErrors()) && "Should only occur in
                    error-recovery path."' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cnsun at uwaterloo.ca
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

$ clang-trunk -v
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
2e9c75daffddd65e37c3236708b5b133e6f5f2f5)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64

$ cat mutant.c
Yf;
static Zf[] = {Yf()};
testf() {
  int i;
  Zf + i;
}

$ clang-trunk  mutant.c
mutant.c:1:1: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
Yf;
^
mutant.c:2:8: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
static Zf[] = {Yf()};
~~~~~~ ^
mutant.c:2:18: error: called object type 'int' is not a function or function
pointer
static Zf[] = {Yf()};
               ~~^
mutant.c:3:1: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
testf() {
^
clang-13:
/tmp/tmp.xjN6dMkdrg-clang-builder/llvm-project/clang/lib/Sema/SemaExpr.cpp:14641:
clang::ExprResult clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation,
clang::BinaryOperatorKind, clang::Expr*, clang::Expr*): Assertion
`(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur
in error-recovery path."' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments: /scratch/software/clang-trunk/bin/clang-13 -cc1
-triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all --mrelax-relocations
-disable-free -main-file-name mutant.c -mrelocation-model static
-mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb
-fcoverage-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210623_154114_03b7/delta/perses_result
-resource-dir /scratch/software/clang-trunk/lib/clang/13.0.0 -c-isystem .
-c-isystem /usr/local/include/cmsith -internal-isystem
/scratch/software/clang-trunk/lib/clang/13.0.0/include -internal-isystem
/usr/local/include -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include
-fdebug-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210623_154114_03b7/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-83fe7b.o -x c mutant.c
1.      mutant.c:5:9: current parser token ';'
2.      mutant.c:3:9: parsing function body 'testf'
3.      mutant.c:3:9: in compound statement ('{}')
 #0 0x000055ea91e4a184 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x000055ea91e4793e SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f29183aa3c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #3 0x00007f2917e4918b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #4 0x00007f2917e28859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #5 0x00007f2917e28729 get_sysdep_segment_value
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
 #6 0x00007f2917e28729 _nl_load_domain
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
 #7 0x00007f2917e39f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x000055ea94504fcc clang::Sema::BuildBinOp(clang::Scope*,
clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*)
(/scratch/software/clang-trunk/bin/clang-13+0x6015fcc)
 #9 0x000055ea945052b1 clang::Sema::ActOnBinOp(clang::Scope*,
clang::SourceLocation, clang::tok::TokenKind, clang::Expr*, clang::Expr*)
(/scratch/software/clang-trunk/bin/clang-13+0x60162b1)
#10 0x000055ea940beaaf
clang::Parser::ParseRHSOfBinaryExpression(clang::ActionResult<clang::Expr*,
true>, clang::prec::Level)
(/scratch/software/clang-trunk/bin/clang-13+0x5bcfaaf)
#11 0x000055ea940c0b0d
clang::Parser::ParseExpression(clang::Parser::TypeCastState)
(/scratch/software/clang-trunk/bin/clang-13+0x5bd1b0d)
#12 0x000055ea9412874e
clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext)
(/scratch/software/clang-trunk/bin/clang-13+0x5c3974e)
#13 0x000055ea9411fce2
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributesWithRange&)
(/scratch/software/clang-trunk/bin/clang-13+0x5c30ce2)
#14 0x000055ea941206ca
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/scratch/software/clang-trunk/bin/clang-13+0x5c316ca)
#15 0x000055ea94121649 clang::Parser::ParseCompoundStatementBody(bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5c32649)
#16 0x000055ea94123c5a clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/scratch/software/clang-trunk/bin/clang-13+0x5c34c5a)
#17 0x000055ea94069ef2
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/scratch/software/clang-trunk/bin/clang-13+0x5b7aef2)
#18 0x000055ea94096850 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/scratch/software/clang-trunk/bin/clang-13+0x5ba7850)
#19 0x000055ea940646f6
clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/scratch/software/clang-trunk/bin/clang-13+0x5b756f6)
#20 0x000055ea94064ce1
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#21 0x000055ea9406b4e7
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/scratch/software/clang-trunk/bin/clang-13+0x5b7c4e7)
#22 0x000055ea9406ca7e
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b7da7e)
#23 0x000055ea9405f2c9 clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b702c9)
#24 0x000055ea92fa6968 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4ab7968)
#25 0x000055ea92856599 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x4367599)
#26 0x000055ea927e97e6
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x42fa7e6)
#27 0x000055ea92934480
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x4445480)
#28 0x000055ea8f754696 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x1265696)
#29 0x000055ea8f7509d8 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#30 0x000055ea8f67e0e6 main
(/scratch/software/clang-trunk/bin/clang-13+0x118f0e6)
#31 0x00007f2917e2a0b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#32 0x000055ea8f75054e _start
(/scratch/software/clang-trunk/bin/clang-13+0x126154e)
clang-13: error: unable to execute command: Aborted (core dumped)
clang-13: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
2e9c75daffddd65e37c3236708b5b133e6f5f2f5)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
clang-13: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/mutant-af9997.c
clang-13: note: diagnostic msg: /tmp/mutant-af9997.sh
clang-13: note: diagnostic msg:

********************

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